Question

4)
A car
moving with velocity of 30 m/s
is brought to rest in 15 s. Calculate its
acceleration.​

Answer 1

Given:-

Initial velocity(u)=30m/s

Final velocity(v)=0 (as it finally comes to rest)

Time(t)=15s

To find:-

Acceleration of the car(a)

Solution:-

We,know that----

$a = \frac{v - u}{t}$

$a = \frac{0 - 30}{15}$

$a = \frac{ - 30}{15}$

a= -2m/s²

Hence,acceleration of the car is -2m/s².

Answer 2

Answer:

Initial velocity(u)=30m/s

Final velocity(v)=0 (as it finally comes to rest)

Time(t)=15s

To find:-

Acceleration of the car(a)

Solution:-

We,know that----

a= -2m/s²

Hence,acceleration of the car is -2m/s².

Explanation:

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